作废 JC 862-2000
粉煤灰小型空心砌块 粉煤灰小型空心砌块 Fly ash small hollow block
发布日期:2000-06-26
实施日期:2000-10-01
分类信息
标准简介
相似标准/计划/法规
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砌块空心粉煤灰

最后更新时间 2025-08-30